fix: compare lowerCase with lowerCase

src/components/FeatureType/FeatureTypeCustomForm.vue

@@ -634,10 +634,17 @@ export default {
       return true;
     },
 
+    /**
+     * Ensures the name entered in the form is unique among all custom field names.
+     * This function prevents duplicate names, including those with only case differences, 
+     * to avoid conflicts during automatic view generation where names are slugified.
+     *
+     * @returns {boolean} - Returns true if the name is unique (case insensitive), false otherwise.
+     */
     checkUniqueName() {
       const occurences = this.customForms
-        .map((el) => el.name.toLowerCase()) // check with lower case in case of slugificaton for data views generation
-        .filter((el) => el === this.form.name.value);
+        .map((el) => el.name.toLowerCase())
+        .filter((el) => el === this.form.name.value.toLowerCase());
       return occurences.length === 1;
     },